CN1096571C - Turbo type fluid machinery - Google Patents
Turbo type fluid machinery Download PDFInfo
- Publication number
- CN1096571C CN1096571C CN98809702A CN98809702A CN1096571C CN 1096571 C CN1096571 C CN 1096571C CN 98809702 A CN98809702 A CN 98809702A CN 98809702 A CN98809702 A CN 98809702A CN 1096571 C CN1096571 C CN 1096571C
- Authority
- CN
- China
- Prior art keywords
- diffuser
- mentioned
- impeller
- axial direction
- type fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 17
- 238000009792 diffusion process Methods 0.000 claims description 4
- 239000011347 resin Substances 0.000 abstract description 5
- 229920005989 resin Polymers 0.000 abstract description 5
- 238000005192 partition Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
- F04D1/08—Multi-stage pumps the stages being situated concentrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4266—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps made of sheet metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
- F04D1/063—Multi-stage pumps of the vertically split casing type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/20—Resin
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A turbo type fluid machinery, comprising a housing, at least one impeller arranged rotatably around one axis of rotation in the housing, and a diffuser made of resin for setting a diffuser channel around the impeller, a supporting member disposed in the housing and pressed by the diffuser in the axial direction to fix and support the diffuser in the axial direction in the housing, and an elastic member held between the supporting member and the pressed surface of the diffuser. An O-ring groove is disposed in the pressed surface of the diffuser so as to surround the axis of rotation, and the elastic member can be set inside the ring groove as an O-ring.
Description
The present invention relates to scroll type fluid machineries such as a kind of pump, in particular for the installation of the diffuser (テ " イ Off ユ-サ ") that spreads runner is set around impeller.
Shown in Figure 2 is an example of 2 grades of pumps of one of scroll type fluid machinery-pump motor integrated.That is, this pump comprises motor part 16 and the pump portion 18 with common axis of rotation 14, and shell 20,22 separately links together with adjoining each other, is provided with partition wall 24 between them.
The shell of pump portion 18 has suction port 26 and discharge opening 28, and portion is provided with within it: be fixed on the 1st grade and the 2nd grade of impeller 34,36 on the running shaft 14; Be used for around each impeller, being provided with the resinous diffuser 40,42 of diffusion runner; Be arranged on the intermediate cap 46,48 that is used to form the 1st grade and the 2nd grade pump chamber around each impeller and the diffuser corresponding, with this diffuser supporting in the enclosure simultaneously with it.
The diffuser 42 of the 2nd grade of pump chamber, seized on both sides by the arms on the axial direction at the tubular thrust piece 52 that extends from partition wall 24 along axial direction with in the upstream of the 2nd grade intermediate cap 48, between the wall 48a that radial direction extends, in addition, the wall 48a that seized on both sides by the arms in intermediate cap 48 of the diffuser 40 of the 1st grade of pump chamber and between the upstream of the 1st grade of intermediate cap, the wall 46a that extending on the radial direction.
On the limit of shell 20,22 adjacency of motor part 16 and pump portion 18, be formed with the fixedly flange 50,52 of usefulness, the flange 58 that is arranged on partition wall 24 peripheries is seized on both sides by the arms at these fixedly between the flange 50,52 of usefulness, bolt 64 is passed on these flanges 50,52,58, the bolt that coupling is made on axial direction is inserted general hole, is clamped by nut 68.
The clamping of this screw bolt and nut, when being connected and fixed shell 20,22, its clamping force is delivered to the 1st grade of diffuser by the thrust piece 52 of partition wall 24, therefore, the 2nd grade of diffuser 42, the 2nd grade of intermediate cap 48, the 1st grade of diffuser 40, the 1st grade of intermediate cap 46 closely are fixedly clamped mutually between the wall 20a that the radial direction that prolonging of this thrust piece 52 and shell 20 delimited suction port 26 extends.
But on such pump, for the clamping force of bolt and nut acts directly on the diffuser, diffuser will use hard and resin material high tenacity that can bear such load, perhaps needs to strengthen the wall thickness of diffuser on axial direction.But, the molding resin material of high tenacity poor and, if strengthen wall thickness, cost increases.
In addition, diffuser directly contacts with intermediate cap, and the surface Machining of its surface of contact needs very high precision, and this point also can raise the cost.
The present invention proposes in view of the foregoing, and its purpose is to provide a kind of makes it can use the scroll type fluid machineries such as pump of being made the diffuser of thin-walled by the lower resin material of toughness.
Scroll type fluid machinery of the present invention has: shell; Be arranged in this shell, can be at least 1 impeller of center rotation with 1 spin axis; The resinous diffuser of diffusion runner is set around this impeller; Be arranged in the above-mentioned shell, pushing, be used for the supporting member of this diffuser of fixed bearing on axial direction in the enclosure on the axial direction by above-mentioned diffuser; Hold above-mentioned at this supporting member and diffuser under the arm by the elastic component between the pressure surface.
Specifically, the supporting on axial direction of above-mentioned diffuser is fixed, be by in the enclosure, be arranged on around the corresponding diffuser of each impeller, the intermediate cap that is used to delimit pump chamber finishes.
The present invention, because need not make diffuser and supporting member is that the above-mentioned axial direction pushing face of intermediate cap directly contacts, but elastic component is arranged between these pushing faces, so on axial direction, deviation can not occur to clamping force with this diffuser, for uniformly, so compare with the material of above-mentioned prior art, its resin material can adopt low toughness, in addition, also can not need high-precision surface Machining.Therefore, compare, can reduce manufacture cost with above-mentioned prior art constructions.
More particularly, be arranged on the O shape ring recess around above-mentioned spin axis of above-mentioned pushing face opening on the above-mentioned pushing face of intermediate cap, above-mentioned elastic component is arranged in this ring recess as O-ring seals.
Fig. 1 is the sectional view of scroll type fluid machinery of the present invention.
Fig. 2 is the sectional view of the scroll type fluid machinery of prior art.
Followingly the best form of implementation of scroll type fluid machinery of the present invention is described according to Fig. 1.
Fluid machinery shown in Figure 1 is basic structure and identical pump shown in Figure 2.Therefore, in the following description, the reference number identical with identical part mark shown in Figure 2 described.
That is, this pump has motor part 16 and the pump portion 18 that is separated and had common axis of rotation 14 by partition wall 24.The shell of pump portion 18 has suction port 26 and discharge opening 28, and portion is provided with within it: be fixed on the 1st grade and the 2nd grade of impeller 34,36 on the running shaft 14; Resinous diffuser 40,42; Be arranged on around each impeller and the diffuser corresponding, be used to form the intermediate cap 46,48 of the 1st grade and the 2nd grade pump chamber with it.
The diffuser 42 of the 2nd grade of pump chamber has the 42b of pushing portion that extends to partition wall 24 from this motor part side, because this pushing portion is compressed by partition wall 24, so bear axial pushing force, the 2nd grade of intermediate cap 48, the 1st grade of diffuser 40 and the 1st grade of intermediate cap 46 are pushed the discharge opening direction to by this pushing force, and seized on both sides by the arms and between the casing wall 20a that the radial direction of delimiting this suction port 26 extends.
Upstream periphery at each diffuser 40,42, be formed with heavy section 70,72, be formed with the O shape ring recess 76,78 of opening in its surface on this heavy section, wherein being provided with elastic component is O-ring seals, and its each diffuser is not directly contacted with intermediate cap at axial direction.
More than, as best form of implementation of the present invention,, can be applied to the waterwheel pump, and other scroll type fluid machinery, promptly can be applicable to have impeller and be located at the fluid machinery of the diffuser around it though narration is the situation that applies the present invention to pump.
Claims (4)
1. scroll type fluid machinery is characterized in that it has:
Shell;
Be arranged in this shell, and can be at least 1 impeller of center rotation with 1 spin axis;
The resinous diffuser of diffusion runner is set around this impeller;
Be arranged in the above-mentioned shell, pushing, be used for the supporting member of this diffuser of fixed bearing on axial direction in the enclosure on the axial direction by above-mentioned diffuser;
Hold the above-mentioned elastic component that is pushed between the pressure surface under the arm at this supporting member and diffuser.
2. the scroll type fluid machinery put down in writing of claim 1, it is characterized in that: on the above-mentioned pushing face of above-mentioned diffuser, the O shape ring recess around above-mentioned spin axis is set, above-mentioned elastic component is arranged in this ring recess as O-ring seals.
3. scroll type fluid machinery is characterized in that having:
Shell;
Be arranged in this shell, and can be at least 1 impeller of center rotation with 1 spin axis;
The resinous diffuser of diffusion runner is set around each impeller;
Portion in the enclosure, be arranged at above-mentioned this impeller and diffuser corresponding with it around, form pump chamber and on axial direction, push the intermediate cap of this diffuser of fixed bearing on same axial direction by above-mentioned diffuser;
Seize the elastic component between the face of the mutual pushing of axial direction on both sides by the arms in this intermediate cap and diffuser.
4. the scroll type fluid machinery put down in writing of claim 3, it is characterized in that: on the above-mentioned pushing face of above-mentioned diffuser, the O shape ring recess around above-mentioned spin axis is set, above-mentioned elastic component is arranged in this ring recess as O-ring seals.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP284385/1997 | 1997-09-30 | ||
JP28438597A JP3352924B2 (en) | 1997-09-30 | 1997-09-30 | Fluid machinery |
JP284385/97 | 1997-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1272907A CN1272907A (en) | 2000-11-08 |
CN1096571C true CN1096571C (en) | 2002-12-18 |
Family
ID=17677909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN98809702A Expired - Fee Related CN1096571C (en) | 1997-09-30 | 1998-09-30 | Turbo type fluid machinery |
Country Status (7)
Country | Link |
---|---|
US (1) | US6343913B1 (en) |
EP (1) | EP1028255A4 (en) |
JP (1) | JP3352924B2 (en) |
KR (1) | KR100538538B1 (en) |
CN (1) | CN1096571C (en) |
AU (1) | AU727303B2 (en) |
WO (1) | WO1999017024A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3978575B2 (en) * | 2001-07-02 | 2007-09-19 | 株式会社荏原製作所 | Casing cover and pump device |
JP3986317B2 (en) * | 2002-01-21 | 2007-10-03 | 株式会社荏原製作所 | Multistage pump |
JP5316365B2 (en) * | 2009-10-22 | 2013-10-16 | 株式会社日立プラントテクノロジー | Turbo fluid machine |
JP2011196327A (en) | 2010-03-23 | 2011-10-06 | Ihi Corp | Turbo compressor, turbo refrigerator, and method for manufacturing turbo compressor |
EP2916008B1 (en) * | 2014-03-07 | 2020-01-08 | CALPEDA S.p.A. | Improved electric pump particularly suitable for pumping liquids containing solid impurities |
EP3530948B1 (en) | 2018-02-23 | 2024-01-17 | Sulzer Management AG | Multistage centrifugal grinder pump |
CN110857692B (en) * | 2018-08-23 | 2022-02-15 | 三花亚威科电器设备(芜湖)有限公司 | Pump and method of operating the same |
US12078185B2 (en) | 2019-05-29 | 2024-09-03 | Fluid Handling Llc | Bearing-less turbine |
DE102020133327B4 (en) * | 2020-12-14 | 2023-01-19 | KSB SE & Co. KGaA | pump assembly |
TWI772103B (en) * | 2021-07-13 | 2022-07-21 | 振聲鐵工所股份有限公司 | Combined structure of multi-segment impeller and wheel housing for immersion pump |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60131700A (en) * | 1983-12-20 | 1985-07-13 | Nec Corp | Non-volatile semiconductor memory |
US4859144A (en) * | 1988-03-07 | 1989-08-22 | The Hoover Company | Fan stage configuration |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54104007A (en) * | 1978-02-01 | 1979-08-15 | Hitachi Ltd | Diffuser for centrifugal compressor |
JPS60131700U (en) * | 1984-02-10 | 1985-09-03 | 株式会社 川本製作所 | multistage pump |
US4859114A (en) * | 1988-03-24 | 1989-08-22 | M-B-W Inc. | Directional control system for a riding-type surface working machine |
DE4230713A1 (en) * | 1992-09-14 | 1994-03-17 | Klein Schanzlin & Becker Ag | Multi-part stage housing |
IT1256730B (en) * | 1992-12-16 | 1995-12-15 | Lowara Spa | SUBMERSIBLE MULTI-STAGE PUMP, PROVIDED WITH MODULAR INTERNAL ELEMENTS IN ANTI-WEAR MATERIALS. |
US5385445A (en) * | 1993-12-03 | 1995-01-31 | Ingersoll-Dresser Pump Company | Centrifugal pump |
JP3294491B2 (en) * | 1995-12-20 | 2002-06-24 | 株式会社日立製作所 | Turbocharger for internal combustion engine |
JPH10252694A (en) * | 1997-03-14 | 1998-09-22 | Sanyo Electric Co Ltd | Motor-driven air blower |
-
1997
- 1997-09-30 JP JP28438597A patent/JP3352924B2/en not_active Expired - Lifetime
-
1998
- 1998-09-30 AU AU92803/98A patent/AU727303B2/en not_active Ceased
- 1998-09-30 KR KR10-2000-7003334A patent/KR100538538B1/en not_active IP Right Cessation
- 1998-09-30 CN CN98809702A patent/CN1096571C/en not_active Expired - Fee Related
- 1998-09-30 US US09/509,489 patent/US6343913B1/en not_active Expired - Fee Related
- 1998-09-30 WO PCT/JP1998/004406 patent/WO1999017024A1/en active IP Right Grant
- 1998-09-30 EP EP98945537A patent/EP1028255A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60131700A (en) * | 1983-12-20 | 1985-07-13 | Nec Corp | Non-volatile semiconductor memory |
US4859144A (en) * | 1988-03-07 | 1989-08-22 | The Hoover Company | Fan stage configuration |
Also Published As
Publication number | Publication date |
---|---|
JP3352924B2 (en) | 2002-12-03 |
AU727303B2 (en) | 2000-12-07 |
KR20010030769A (en) | 2001-04-16 |
CN1272907A (en) | 2000-11-08 |
EP1028255A4 (en) | 2006-08-02 |
WO1999017024A1 (en) | 1999-04-08 |
AU9280398A (en) | 1999-04-23 |
EP1028255A1 (en) | 2000-08-16 |
KR100538538B1 (en) | 2005-12-22 |
US6343913B1 (en) | 2002-02-05 |
JPH11107992A (en) | 1999-04-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |